Thanks for your hard work. Very interesting. :)
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Thanks for your hard work. Very interesting. :)
Martin with all the respect to your personality, what would you say after finishing all this great work, to start a series of tests that will show the real impact of static pressure on water temps especially with water coming out of the rad? It would be good to have all these results consolidated. Just a thought.:yepp:
There is no solace for buying a fan that is not to be named here. BTW the rads help cool the entire loop, not just water coming out the rad (equilibrium). Which means water going in the rad will be cooler too on the rig with the better fans. So the important temps are all of them, not just out of the rad. :yepp:Quote:
Originally Posted by xpatar
:up: though you don't need to unless you want to. I appreciate the hard work!Quote:
Originally Posted by Martinm210
What I mean is what are the DT values for the temps right before and after the rads. Of course rads help cool the entrire loop, but wouldn't be better if we knew for every fan that is tested what are the gains in water temps because finally that's what we want is lower temps in our system. So what are the gains of using fans with higher static pressure in water temps? Generally speaking better fans wil give bettter temps is simply general. Why don't we record those numbers? How much do they really drop water temps? :yepp:Quote:
Originally Posted by Sadasius
I would like to see what worked best with whatever used on a test setup too in a very nice graph. :yepp:
he still have 12+ fans to go thru :DQuote:
Originally Posted by Sadasius
Yeah going to be a little bit. It's okay the twitches are not that crazy yet...:rofl: Should have a list of the fans being tested so we can have a betting pool going on.Quote:
Originally Posted by Hondacity
I'll get there, eventually, but I'm not thermal testing anymore...I gave that up, it takes too long, and I don't have the patience...:p:
Here is the LED version of the Yate Loon D12SL12 fan, they are speced out at 1200RPM, but just like the other yates. I'm giving yate loon fans the official "Over RPM achiver award"..they seem to turn a fair amount higher than the specification.:shrug:
It is a slower speed turning fan, running around 1350RPM.
I havn't quite figured out why, the per RPM it didn't perform as well as the straight version and they look the same...perhaps that smoother surface isn't always a good thing or perhaps they are a slightly different angle...not sure.
I used to like LED when I first started getting into things, but not so much these days. It's a nice looking fan though, and an excellent value similar to the other yates.
http://img12.imageshack.us/img12/949...ightledpho.jpg
http://img12.imageshack.us/img12/392...aightledpq.png
See the OP for the summary chart, it does ok, but not as well per RPM as the other yates.
i love the summary...hmmm higher rpm seems to yield better cfm thru the rad.... i like the evolution of the testing
Yeah, it's amazing!!....lol!Quote:
Originally Posted by Hondacity
Now, how about a cfm per 1000RPM normalized...give me a minute.
OK, here is CFM per RPM on the heatercore....Not sure what this tells me exactly but the curved yate,San Ace, and XL-2 are on top.:shrug:
I'm guessing since the XL-1 is likely the same fan blade as the XL-2, this is just showing how fan efficiency per RPM drops off with lower RPMs as well..
http://img440.imageshack.us/img440/5916/summary5b.png
what if the graph was in multiples of 100? x and y axis labels? sorry i can't help it :D
Alright, I'll put on labels, but you have to start CAPS for "I"...:DQuote:
Originally Posted by Hondacity
http://img12.imageshack.us/img12/4254/summary5c.png
All i need at the top or bottom of each graph is, (higher is better) or (lower is better):D
I aim to please...:DQuote:
Originally Posted by sirheck
http://img12.imageshack.us/img12/6956/summary5d.png
Eggscellent :)
can you repost the old info martin?
FYI, I am working on getting all of Martins Fan Testing info hosted @ skinnee labs. This way it is always available.
FYI,
I tested about 4 more fans this past weekend, and updated the OP with the summary results..:up:
thanks martin! Too bad i'm slightly colourblind. The slip streams still on top of the cfm through rad/rpm, or is it now the koolance 38mm one?
It's a bit of a toss up actually as you move up the chain. I think the Slip-stream is performing strongest per RPM for the lower to medium high speed, then it's between the San Ace and Koolance 38mm on the ultra high. The high speed Ulra Kaze also does much better than the 1000 speed version which I don't quite understand.Quote:
Originally Posted by Boogerlad
In the end, I'm thinking it's probably not worth putting too much weight into the whole CFM per RPM. I'm still pretty intrigued by the slip-stream, but I'm completely unsatisfied with all of the 38mm fans regarding their inability to undervolt without motor noise issues. Even the San Ace creates a motor click at low voltages that doesn't seem to be nearly as problematic with the 25mm fans.
Here is another view:
http://img524.imageshack.us/img524/552/summary20b.png
great work martin
san-ace beat the koolance 38hbk :(
hmmm i wonder which is noiser :D
Yeah, not buy a bunch though, pretty close overall.Quote:
Originally Posted by Hondacity
Noise...not sure. The Koolance has more of a straight blade which may make less noise. Both make way too much noise for my liking.
The top end has not yet been complete though. I still have the Panaflo Ultra High you sent and a Delta AFB1212SHE I suspect will be king of the noise makers..:D
Skinnee's sending me an RS120 to start the noise testing on, so it won't be too long before I can start in the the noise/video recordings. Not quite sure what I'll be able to measure or conclude from the next round, but I'll at least get some recordings so you can listen to sound tones for yourselves.:up:
Outstanding work Martin! :)